Magnetic separator.



A. L. HADLEY. MAGNETIC SEPARATOR. APPLlCAT l0N FILED OCT. 7, 1916-Patented Apr. 23, 1918; Fig. 2.

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ARTHUR L. HADLEY, 0F FORT WAYNE, INDIANA, ASSIGNOR TO GENERAL ELECTRICCOMPANY, A CORPORATION OF NEW YORK.

MAGNETIC SEPARATOR.

Specification of Letters Patent.

Patented Apr. 23, 1918.

To all whom it may concern:

Be it known that I, ARTHUR L. HADLEY, a citizen of the United States,residing at Fort Wayne, county of Allen, State of Indiana, have inventedcertain new and useful Improvements in Magnetic Separators, of which thefollowing is a specification.

The present invention comprises a device for separating magneticparticles from liquids, for example, from oil.

One of the features of my improved apparatus is a conduit for theliquid, the opposite walls of which consist of magnetic material and amagnetizing coil so arranged that the magnetic circuit passes throughthe liquid from one wall to the other. The construction and novelfeatures of my invention will be better understood from the followingdescription with reference to the accompanying drawings in which,

Figure 1 is a longitudinal section; Fig. 2, a plan view with the topremoved, and Fig. 3 allongitudinal section taken at right angles to i 2.

AsTest shown in Fig. 1, the device comprises an inclosed tank 1,restingon a castiron base 2, and supported by legs 3. The tank isdivided into two chambers by a partition 4. Attached to the free end ofthe partition by angle irons 5 and 6, is a transverse plate 7 spacedaway from the base of the tank. The plate 7 is reinforced by another andnarrower plate 8 to increase the magnetic permeability so as to car themagnetic flux to the ends of plate 7. gpposite to the plates 7 and 8,are plates 9 and 9' resting on the bottom of the tank. A magnetic fluxis generated by a rectangular electrical coil 10, indicated in sectionin Figs. 1 and 3, and in dotted outline in Fig. 2. The walls of thetank, the base 2, the longitudinal and transverse plates 4, 7, 8, 9 and9' all consist of iron or steel, but the plates 11, 11' acting as acover for the coil 10 consist of non-magnetic materials such as brass.The magnetic flux is diverted across the conduit connecting the twochambers 14 and 15, by the non-magnetic bottom 11, 11 of the tank andthe oppositely located magnetic partition plates 7 and 8. The insert 12consisting of brass or other suitable material located between theplates 9, 9', as indicated in Fig. 2, is used to weld together the twobrass plates. When the coil 10 is energized, preferably with directcurrent, the lines of force pass from the plates 9 and 9, respec tively,t0 the plates 7 and 8, through the fluid, thereby magnetizing andremoving the iron filings, or the like.

The oil or other liquid to be subjected to magnetic purification entersthe tank through an inlet pipe 13, flows downwardly in one section 14 ofthe tank, as indicated by arrows, then flows between the space betweenthe walls 8 and 9, and passes upwardly through the adjoining section 15of the tank, escaping from the tank through an outlet pipe 16.

While passing between the plates 8 and 9, 9, the fluid is subjected tothe most intense magnetic field, but as the tank itself consists ofmagnetic material the magnetic flux as a matter of fact extendssubstantially to the top of the tank so that the fluid passing throughthe tank is substantially continuously under purifying influence of themagnetic field. The magnetic particles in tlfie fluid drawn to themagnetic poles, ma removed through the manholes 17 an from time to time.

The large size of the tank compared with the size of the inlet pipecauses the fluid to pass between the magnetic poles at a slower ratethan in the pipes, so as to permit settling and a complete removal ofthe suspended magnetic particles.

What I claim as new and desire to secure by Letters Patent of the UnitedStates, is:

1. A magnetic separator comprising a tank consisting of magneticmaterial, a magnetizing winding located at one end of said tank andpositioned togenerate a flux traversing in part at least the wall ofsaid tank and the space within said tank,a partition dividing said tankinto chambers but leaving a connecting passage between said chambersadjacent said winding, and a plate of magnetic material spaced away fromthe base of said tank to divert magnetic flux across the passage leadingfrom one chamber to the other chamber.

2. A magnetic separator comprising an inclosed tank, a partitiontherefor spaced away from one end of said tank, a ma etic platetransverse to said partition a joining the free end of said partition, amag-- netic plate located opposite said transverse plate and adjacentthe end of said tank, and means for generating a magnetic flux passingfrom sald end plate across the intervening space, and through the transverse plate,

3. A magnetic separator comprising an inclosed tank, a partitiontherefor, spaced away from. one end of said tank and extending to theopposite end, a transverse plate of magnetic material joined to the freeend of said partition, a plate of magnetic material joined to the freeend of said partition, a plate of magnetic material spaced away fromsaid transverse plate, an electromagnetic coil located to generate amagnetic flux passing between said plates through the intervening space,and conduits for respectively admitting and withdrawing oil from thetank on opposite sides of said partition,

4. A magnetic separator comprising .an

inclosed tank, a partition therefor, spaced away from one end of saidtank and extend ing to the opposite end of said tank, a transverse plateof magnetic material adjoining the free end of said partition andleaving a passage from one side of the partition to the other, a plateof magnetic material bounding said passage opposite said transnaeaeoeverse plate, and a magnetic coil for generating magnetic vfluxes passinbetween said magnetlc plates loounding said passage to thetransverse-plate across the intervening space,

5, A magnetic separator comprising an inclosed iron or steel tank,apartition therefor spaced away from one end of said tank and extendingto the opposite end, a transverse plate of magnetic material extendingfrom. the free end oi said partition partly across said tank, a secondtransverse magnetic plate spaced away from said plate,

- an electrical winding for generating a magneticflun, the circuit ofwhich includes the base of said tank, and said transverse plates,

a covering of non-magnetic material for said winding, and conduits atopposite sides of said partition remote from said transverse plate forrespectively introducing and withdrawing liquid to be subjected tomagnetic purification,

In witness whereof, 1' have hereunto set my hand thisith day of October,1916.

ARTHUR L, HADLEY

